Upsetting mechanism



R. 1.. WILCOX 1,805,124

May 12, 1931.

UPSETTING MECHANISM 2 Sheets-Sheet 1 Filed May 25, 1927 I I l N I N A} Q g: 3|, saoa o o will wwqb o 1' b Ric/Lard Lester M7001 y 1931. R. L. WILCOX 1,805,124

' UPSETTING MECHANISM Filed May 23, 1927 2 Sheets-Sheet 2 INVENTOR Ride ara' Les! M7000:

ATT N EY Patented May 12, 1931 UNITED STATES RICHARD LESTER W'ILCOX, OI WATEBBURY, CONNEGTICU T, SIG-NOB TO THE PATENT OFFICE WATER- BURY BARREL FOUNDRY AN D MACHINE COMPANY, OI WATERBUBY, CONNECTICUT,

A CORPORATION OF CONNECTICUT UPSETTING MECHANISM Application filed Hay 28,1927. Serial No. 198,848.

This invention relates to upsetting mechanism and particularly to a method and means for upsettlng a workpiece or blank, at an angle to its axls, and (preferably toaccomplish this result by hol ing the workpiece m a line that is at substantially a right an 1 e to the punch slide as is usual in such mac mes.

Among other aims and objects of the 1nvention may be recited the provislon of a method and means substantially as described, that is adapted for application to an upsetting machine or header of the ordinary t c with the minimum addition of parts th reto, and wherein the blank is normally held in a position wherein its ax1s is substantially parallel with that of the punches.

My improved method and the means for eifecting the same will be apparent from an inspection of the accompanying drawings in connection with the descript on, heremafter contained, and wherein one of the .means for accomplishing the purposes of my invention is disclosed for an understanding of the same.

generally upon line 2-2 of Figgre 1;

In the drawings, wherein like numerals of reference indicate like parts in the several figures;

Figure 1 is a transverse sect1onal VIBW of an upsetting machine or header of the ordinary type, having my improved. mechanlsm connected therewith;

Figure 2 is a side elevation thereof partly in section, the parts in section being taken Figure 3 is a view of a Wor sented to the tools;

Figure 4 is a side elevation of a set of dies, and punches, with one form of workpiece therebetween, and after operation thereon by the first die in each set;

Figure 5 is a similar view after operations t ereon by the finishing punches;

igure 6 is a fragmentary sectional elevation of a double end header or upsetting machine illustrating one form of workpiece and the finishing dies in contact therewith; and

Figure 7 is a view similar to thatshown in Figure 6, the structure being designed to produce another form of workpiece.

My improved method consists essentially iece as pre in so operating the punch slide that in addition to its usual movement relative to the gate it has an independent movement thereon,

move forward toward the ies travel in a path at an angle other than a right angle to tip; straight path movement of the punch s 1 e.

In the drawings, 10 designates a fragmentary portion of the body member of an upsetting or heading machine of the usual type, having therein a gate 11, on the face of which is movably mounted the punch slide 12, and connected witlrwhich is the punch holder 13, having. fixed therein, as is usual, the punches 14 and 15. This punch slide derives its movement relatively to the gate from a shaft 16, which carries a block 17 slidably mounted in the slot 18 in the connection arm 19, which is pivotally connected to the rock member 20 journaled on the rock shaft 21. Upon this shaft is fixed an arm 22, in which is threaded the stop screws 23.

The yielding plates '24 which are held in their lower ends in the rock member 20 by the screws 25 contact at their upper ends against the heads of the stop screws 23, and provide a flexible means for imparting the movement of the rock member 20 to the rockshaft 21 whereby one or more of the (punches as they a through the arm 22. Y

ing movement of the shaft is transmitted into a straight line movement of the punch slide relatively to the gate, at the same time permitting reciprocatory movement of the latter.

In upsetting machines or headers of the ordinary type for straight heading, the movement of the punch slide is limited by stop screws or the like and is usually locked in these positions so as to be held rigid durin the engagement of the punch with the workpiece.

In my improved method andmeans the slidev is not so locked when the final punch is perv formin its function, at which time the punch slide derives an independent movement against the action of the mechanism actuated frem the shaft 16, which. gives the punch its v reciprocatory movement. This mechanism comprises in art a supporting member 29, in which is a s aft aving thereon a cam roll 31.

Fixed to the punch slide near its upper end by the bolts 32 or the like, is a plate 33 havihg a cam face 34 thereon which during the movement of the punch slide contacts with the cam roll 31. The upper'or first punch 14 is constructed with a projecting nose 42, the upper face of which is at an angle to the axisof the punch, and having a groove 43 therein. The lower or second punch 15 has an angular front face 44 with a recess 45 therein of substantially the same diameter as the workpiece and occupying the same relative angle to its axis as does the groove 43 to the axis of the punch 14. These punches are shaped to prouce the particular form of article illustrated herein. Other sha ed dies will, of course, produce different orms of articles, and I therefore desire it to be understood that my invention is not limited to the forms of dies or finished article herein illustrated.

Dies of various forms and' types may be used to support and hold the workpiece, those herein shown being designated 46, and are designed for double end heading. In such a case a second punch slide 47 is operativelv mounted opposite the first mentioned unch slide and is provided with two punc es 48 and 39.

Punches 14 and 48 engage the o posite ends of the workpiece at substantial y the same time, likewise punches 15 and 39. As the path of travel of the punch 15 is at an angle to the axis of the workpiece, the recess is located at a point above the axis of the punch, as is clearly shown in Figure 5.

In operation, the punch 14 first engages the workpiece 35, which is held in the dies 46. As the gate moves forward the outer end of the work piece 35 enters the grooves 43 in the unch 14 and b engagement with the floort ereof, such en is bent, turned or deflected at an angle to its axis, leaving, after the operation, an offset portion 36, substantially as shown in Figure 4. The punch 14 is then withdrawn, the punch slide moves up wardly through the action of the connection arm 19 and associated parts and during the forward movement of the gate, the cam face 34 on the plate 33 contacts with the cam roll 31. The continued pressure of the punch slide actuating mechanism and forward movement of the gate causes the punch slide and the punch 15 associated therewith to move downwardly a limited distance. This gives movement to the punch 15in an angular path, substantially parallel with the angularity of the cam face 34. During this action one of the sets of plates 24 yields sufliciently to permit the supplemental movement of the punch slide and without impairing the travel of the connection arm 19, which is positively moved by the cam 37 on the shaft 16. This angular travel of the punch 15 takes place when forming the article illustrated herein during the engagement of the punch with the workpiece, at which time the bent or ofi'set portion 36 enters the recess 45 in said punch. The workpiece is thus subjected to the pressure of the punch 15 while moving in this angular path, and thus upsetting the blank at an angle to its axis and thereby producing the article shaped substantially as shown in Figure 5. During the withdrawal of the gate 11 the punch slides moves upwardly again as the plates 24 assume their normal position, the cam face 34 retaining its contact with the cam roll 31 until moved out of engagement therewith. At this time the plates 24 are restored to their substantially normal positions and the punch slide is moved downwardly through the action of the connection arm 19, the operations being re eated as before.

n the finished article herein illustrated, a tenon 38 is formed on the end of the workpiece and is substantially the same diameter, the adjacent portion 40 being upset to conform 'to the shape of the opening in the die 46 with the face 41 thereon at substantially a right angle,to the axis of the tenon 38. Thus, there is no upsetting at the extreme end of the workpiece, but at a point adjacent thereto. This, however, is only one of the many forms of articles that may be produced by this method and means, and the upsetting of the blank may be at the extreme end if desired.

The punches 48 and 39 perform operations on the workpiece in the same manner and with the same result as is now well known in the art, the punch 54 first producing a cone head 52 and the punch 55 the finished head 53.

In Figures 6 and 7 I have illustrated my improved mechanism as applied to a double en header or upsetting machine, wherein there are two gates that move toward and awe from each other and produce finished workpieces substantially as shown herein.

In Figure 6 the cam rolls 31 are both above the punch slide. In Figure 7 one cam roll is above the punch slide and the other below. The angular upsetting at the ends of the work iece, asshown in this latter figure,

projects 1n opposite directions. The cam 49 in Fi re 7' is formed on the shoe 50 connecte with the punch slide by the bolt 51. Thus, by various arrangements of the punch slides, workpieces can be produced with an angular upset portion at either or both ends and project in any direction, as maybe desired.

There are minor changes and alterations that may be made within my invention, and I would therefore have it understood that I do not limit myself to the exact construction herein shown and described, but claim all that falls fairly within the spirit and scope of the appended claims.

What I claim as new is: 1. The method of automatically upsetting a rod by first rigidly gripping the rod at a distance back of its end, then applying lateral pressure to one side of that portion of the rod projecting beyond the gripping means to bend such portion at an angle to that part thereof within the gripping means and finally, while the rod is still retained by the gripping means, apply upsetting pressure to the outer end of the bent portion of the rod in a path substantially parallel to the axis of the turned portion to upset the same.

2. The method of automatically upsetting a rod by first rigidly gripping the rod at a distance back of its end, then applying lateral pressure to one side of that portion of the rod projecting beyond the gripping means, the extent of area of such lateral pressure determining the degree of angularity of such turned portion and finally, while the rod is still retained by the gripping means, applying upsetting pressure thereto at an angle inclined to that portion thereof within the ripping means to upset the same.

3. T e method of automatically upsetting a rod by first rigidly gripping the rod at a distance back of its end, then applying lateral pressure to one side of that portion of the rod projecting beyond the grlpping means, said pressure being first applied at or near the outer end of the bent portion and progressiVely extending alon the side thereof, the extent of the area 0 such lateral pressure determining the degree of angularity of such turned portion and finally, while the rod is -.still retained by the gripplng means, applying upsettin pressure thereto at an angle inclined to t at portion thereof within the gri ping means to upset the same.

testimony whereof, I have hereunto af- 4 fixed my si ature.

RIC D LESTER WILCOX. 

